Connection for pneumatic apparatus.



I. H. SPENCER. GONNEDTION FOR PNEUMATIC APPARATUS. APPLICATIQN FILED DBO. 23. 1907.

968,810. Patented Aug. 30, 1910.

7 WITNESSES @(i/w I u $054M ATTORNEY.

- UNITED STATES onnrcn,

'ma H. srmrcnn, or HARTFORD, CONNECTICUT. ASSIGNOR TO THE SPENCER TURBINE- cnmzmn. COMPANY, or HARTFORD, connncncuzr, A oomaonarron or con- NECTICUT.

CONNECTION FOR PNEfi'MATIC APPARATUS.

Specification of Letters Patent. Patented Aug. 30, 1910.

Application filed December 23, 1907. Serial No. 407,645.

To all whom it may concern:

Be it known that 1,-IRA II. Srnxoeu, a

-citizen of theUnited'States, and a resident of Hartford, in the county of Hartford and "State of Connecticut, have invented a new vices specified," and the object of my inve'ntion is to provide a device of this class having novel features of advantage and utili't A form of device in the use 'of'which this object may be obtained is illustrated in the accompanying drawings, in which Figure 1 is a viewin elevation'of a 'por- 'tion'of a pneumatictube'showing my improvement applied theretd, parts being broken away to showcon structlon. Fig 2- is a view in central longitudinal section through a connectionembodying my inven-- tion; Fig. dis a view of the' mouth valve and its mount.

In the accompanyingdrawings the llll-" 'meral 5 indicates a tube arranged for con- 'veying a current of air, this tube being arranged in any suitable position, as within a wall including lath 6 and plastering 7. A T 8 is attached to this tube, the branch 9 of' which projects through thewall in proper position for attachment of hose or devices to receive a hose.

My device is especially applicable to pneumatic cleaning apparatus, in which the air currents are created by'suction, the air being taken in through the hose or like arts connected with the branch 9. In'suchc eaning devices it is desirable to use different sizes of hose, depending upon the length of hose employed for cleaning purposes. To accomplish this the branch 9 is provided with a stud 10 having a head 11. A-locking nut 12 is located upon the stud, thislocking nut having a recess 13 for the reception of the head 11 of the stud, this head preventing disengagement of the nut from the stud.

a valve body 17 in'which a valve 18 is located. This valve has a handle or like, part 19 which is employed for manipulating the valve. An opening 20 is formed through the .valvewhich is'adapted to register with the openings 21 in the tip on each side of the valve chamber. Thevalve is provided with a flange22 overlying a valve seat 23 on the 'valve body at the outer surface. A packing 24 is located upon'the valve seat 23 to msure the tightness of the joint at this point. i

' The valve 18 terminates at its inner end short-of the end of the valve chamber, this leaving aspa'ce 25 between the inner end of the 'v'alveand the wall of the valve body. A port 26 extends; from the openin 20 into this recess or chamber 25; It wifi be seen from this construction that as air is drawn: through the device by suction this port and in its ositionnpon the tip. It is split on one-si e, ears-28 being located on opposite sides of the split portion, and a bearing screw 29 projects through the ears.

By loosening or tightening'the screw it will be seen that the band or ring 27 is readily loosened or tightened for purposes of adjustment or otherwise upon the end of I the tip.

A- valve 30 has a shank 31, the end of which is mounted upon the screw 29. A spring 32 is em loyed to force the valve toward its close position. This shank 31 is of considerable len th and even without the spring 32 it will e seen that when the valve is placed in a certain position itwill I close by the action of gravity. The spring,

however, is employed to certainly throw the valve to a position from which it may act under the influence of gravity.

By adjustin the band or rin 27 along theti the paelrin 33 on the va ve may be cause to accurately engage the valve seat 34 on the end of the tip, thus preserving the valve ti ht at this point.

A stud 10, nut 12 and other parts as hereinbefore described are located at this end of the tip for the anazhment of a hose or like art 36 The end of the hose is provide with a metallic ring 37 having the slot and recess for the reception of the stu and nut as hereinbefore described.

It will be seen that from this construction a hose of a certain size having the ring 37 may be attached directly to the branch 9, or if a smaller hose is required, depending upon the length which is used, the removablg tip being inserted in position such smaller hose is readily attached thereto.

A recess 38 is formed in the valve 18, extending along the surface and a pin 39 projecting through the valve body with its inner end located in this recess determines the degree of movement of the valve.

The valve 30 is so constructed that it is impossible to leave it open after a hose has been disconnected therefrom. Should such valve be left open the inconvenience may be readily imagined where a system is installed in a building of several stories, as much time will be required to locate the; open mouth. Such opening, of course, might affeet the working of the apparatus.

In the use of the device in stores or-other places where frequent use is required, the valve 18 is of especial advantage as"-the passage through the tip may be closed before the valve 30 is opened, thus preventing objectionable noise as the air passes in at the month, which noise will. result should the passage through the tip remain open.

In order to attach a hose to the removable tip it is necessary that the bearing for the valve 30 shall be located at some dis tance from the end or mouth,'and the ring 27 provides such hearing. The arm 31 ex:

tending from the valve provides means whereby the valve may be raised so as not to obstruct the attachment of the hose'to the tip.

I claim: 1. A tube arranged for the passage of fluid and having a mouth opening therefrom, a valve arranged to close said mouth, means for supporting the valve, means for adjusting the position of said support in a direction practically the same as that of the seating and unseatin movement of the valve and a shank extending from the valve in a direction lat'era-ll of the plane of the valve seat and secure to said support.

2. A tube arranged for the passage of fluid and having a mouth forming a valve seat located in a plane at right-angles to the axis of that part of the tube upon which said seat is located, a band adjustable along said tube in a direction practically the same as the directionof seating and unseatin movements of the valve, a valve adapte to close the mouth into the tube and a shank extending from the'valve in a direction laterally of the plane of said valve seat, said shank being pivotally attached to said'band.

3. A tube arranged for the passage of fluid and having a mouth forming a valve seat in a plane at right-angles to the axis of that part of the tube upon which said seat is'located, a split ring mounted upon said tube, a valve adapted to close the mouth of the tube and a shank extending from the valve in a direction laterally of the plane of said valve -seat, said shank being pivotally attached to said ring.

4. A pipe arranged for the passage of fluid and having a mouth forming. a valve seat, a split ring formed of a single piece mounted on the pipe, :1 single. pivot arranged to close the ends of the ring together, a valve arranged to close the mouth into the tube and a shank extending from the valve in a direction laterally of the plane of said valve seat, said shank being pivotally attached to said ring.

A tube arranged for the passage of fluid. and having a mouth opening therefrom. and forming a valves-eat, a valve arranged to close said mouth, a shank extending from the edge of the 'valve in'a direction practically parallel with the axis of the pipe when the valve is closed, asupport mounted upon the pipe, and means for pivotally attaching said shank to said sup- )ort.

l 6. A tube arranged for passage of fluid and having a mouth opening therefrom forming a valveseat,.a'valve arranged to close said mouth, a shank extending from the edge of said valve practically parallel with the axis of said plpe when the valve 00 isclosed, a support located upon the pipe, means for pivotally attaching said shank to said support, and means located between the support and the endof the pipe for attachment of a hose.

111A H. SPENCER. 

